In our experience, it depends a lot on where you're staying. In nature settings (state and national parks, etc.), people are there for recreation and tend to be more relaxed and interactive. We stay in Escapees parks and military campgrounds as much as possible. Both of those are community situations and we find people very friendly and conversational. We have a number of friends we've made in these situations that we've ended up staying in contact with - and even meeting up with - over time.
We are spending a couple of months this winter in a privately-owned park in southern New Mexico. Some of the people in the park are still working and live in RVs because it's convenient or because they have too. Those people generally don't have time or aren't inclined to socialize. Another contingent in the park are the retired snow-birders. They, like us, tend to enjoy talking with each other and we frequently engage with or are engaged by them when we're out and about in the park.
Rob
